One of my favorite character actors, the ubiquitous Canadian Bruce Greenwood, has played a wide variety of characters in his long career, everything from John F. Kennedy (“Thirteen Days’’) to Madonna’s husband (“Swept Away’’) to Captain Kirk’s mentor in the new “Star Trek” movies.

Greenwood has a rare leading role in this indie comedy as a Chicago ad executive who wakes up in the hospital after a nervous breakdown speaking entirely in advertising slogans like: “You deserve a break today,’’ and “Have you spoken to your doctor about erectile dysfunction?’’

Parker Posey, who regrettably isn’t seen as much as she used to be, plays a woman who inexplicably takes Greenwood into her home though she would seem to have her hands full with a rebellious teenage daughter (Allie MacDonald).

While Greenwood and Posey turn on enough charm to make this a fairly painless experience, Zack Bernbaum’s “And Now a Word From Our Sponsor’’ is a mild, toothless satire — a “Being There’’ where there’s barely any there there.